This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories.

Includes:

M4E1 Enhanced Assembled Upper Receiver

Quantum Handguard of choice

16" .223 Wylde Stainless Steel Barrel

Low Profile Gas Block and Mid Length Gas Tube

Product comes assembled

Thie complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the Finish Your Build tab

M4E1 Upper Features:

Forged from 7075 T6 aluminum

Precision machined to M4E1 specs

M4 feedramps

Matte black hard coat anodized Mil 8625 Type 3 Class 2

Laser engraved T-marks (Anodized only)

Comes assembled, with port door and forward assist installed

Accepts standard AR15/M16 components

Handguard mounting platform is forged into the receiver

Works with Aero Precision handguards but also fits most BAR-system handguards